Lithospheric mantle xenoliths sampled by melts from upwelling asthenosphere: The Quaternary Tasse alkaline basalts of southeastern British Columbia, Canada
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- 作者：Eyal Friedmana ; Ali Polata ; polat@uwindsor.ca" class="auth_mail" title="E-mail the corresponding author ; Derek J. Thorkelsonb ; Robert Freic
- 关键词：The Canadian Cordillera ; Mantle xenolith ; Alkaline basalt ; Mantle metasomatism ; Continental lithospheric mantle
- 刊名：Gondwana Research
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：33
- 期：Complete
- 页码：209-230
- 全文大小：4279 K
文摘
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Quaternary alkaline basalts in southern British Columbia contain mantle xenoliths.
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Xenoliths were derived mainly from spinel lherzolites in the lithospheric mantle.
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Compositions of the mantle xenoliths are consistent with a subarc mantle source.
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Alkaline basalts were derived from an asthenospheric mantle source.
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Alkaline basalts have OIB-like trace element and Sr–Nd–Pb isotope compositions.